CN101547377B - Signal source and control method thereof - Google Patents
Signal source and control method thereof Download PDFInfo
- Publication number
- CN101547377B CN101547377B CN2009100831606A CN200910083160A CN101547377B CN 101547377 B CN101547377 B CN 101547377B CN 2009100831606 A CN2009100831606 A CN 2009100831606A CN 200910083160 A CN200910083160 A CN 200910083160A CN 101547377 B CN101547377 B CN 101547377B
- Authority
- CN
- China
- Prior art keywords
- signal
- arm
- remote computer
- select programs
- processing board
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Abstract
The invention discloses a signal source and a control method thereof. The signal source comprises a colorful touch liquid crystal display LCD, a key control board, an ARM, a signal processing board, a memory, encoders and a remote computer, wherein the key control board selects program signals or the colorful touch liquid crystal display LCD selects programs or the remote computer selects the programs; the ARM judges whether the remote computer sends a program signal selection instruction or not, otherwise, the colorful touch liquid crystal display LCD and the key control board are adopted to control, read information from the memory and transmit the signals to the signal processing board; the signal processing board converts a signal file into digital signals with TV format or VGA format which are transmitted to the encoders; and the encoders perform encoding on the signals and output the signals to a television or a display to be detected, therefore, the signal source which has intuitive, convenient and quick program selection and operation control equipment, wide measuring range and low manufacturing cost, and is suitable for various environments and the control method thereof are provided.
Description
Technical field
The present invention relates to a kind of signal source and control method thereof, particularly a kind of signal source and control method thereof that is used for TV and display apparatus test.
Background technology
Signal source is the equipment that is used for TV and display apparatus test, has the different scan format of hundreds of kind, unlimited many picture intelligence/audio signal and standard that varies and non-standard signal.
Existing signal source interface is monochromatic dot matrix LCD liquid crystal display screen, and the code name that is used for shows signal claims.Keyboard operation claims select programs according to code name.Output has only standard signal, no non-standard signal; Or computer based industrial computer cost performance is low, and hard disk, the working method of the reliable semiconductor device of non-whole employings are not broken away from work.
Existing signal source shortcoming is: code name that only can shows signal claims, and signal source has hundreds of signal format and hundreds of signal content available, therefore, when selecting signal, adopt keyboard to ransack up and down, can not get information about the signal that will choose is what, is own signal to be selected, especially for some inconvenience of first user;
Because the displaying contents of test signal all has concrete implication, so, can not understand its purposes for selected signal;
Can only the outputting standard signal, be applied to problem under the non-standard signal situation for some, be not easy to find and solve that measuring range is little;
Adopt the medium of hard disk as the storage data, hard disk adopts the mode reading of data of high speed rotating, and because the employing hard disk is non-reliable semiconductor device, in the process of reading of data, is unsuitable for the suitability for industrialized production test request of various varying environments;
And existing equipment often adopts specific industrial computer control, and is on the high side.
Summary of the invention
Defective at above-mentioned prior art, the purpose of signal source of the present invention and control method thereof provide a kind of intuitively, conveniently select programs and operational control unit, measuring range is wide, and low cost of manufacture is applicable to all-environment signal source and control method thereof.
For achieving the above object, the present invention adopts following technical scheme:
A kind of signal source comprises keying panel, memory, signal-processing board, encoder, remote computer;
Described keying panel is used for carrying out program according to corresponding prompt to be chosen, output select programs signal;
Described memory is used for programs stored graph of a correspondence data file, signal figure and the explanation of figure characteristic of correspondence;
Described remote computer is used to control choosing of program, transmission select programs signal, and the signal figure of display program correspondence and the explanation of figure characteristic of correspondence;
Described signal-processing board is used to handle the corresponding information of reception, and data transaction is become the digital signal of TV form or VGA form, with the digital signal output of TV form or VGA form;
Described encoder is used to connect TV to be measured or display, receives the TV form of described signal-processing board output or the digital signal of VGA form, and the back output of encoding;
Comprise that also color ribbon touches LCD LCDs and ARM;
Described color ribbon touches the LCD LCDs and is used for when non-described remote computer is controlled, and the control program is chosen, and exports the select programs signal, and shows the signal figure and the explanation of figure characteristic of correspondence of the program correspondence that described ARM calls;
Described ARM is used to receive the select programs signal, judging whether it is the select programs signal that described remote computer transmits, is then to choose by described remote computer control program, stops the control of keying panel, and read information in the memory, with message transmission to signal-processing board.
Signal source of the present invention, wherein said signal-processing board outputting standard signal and non-standard signal.
Signal source of the present invention, wherein said non-standard signal comprise output amplitude, OK/field structure and pixel clock.
Signal source of the present invention, wherein said color ribbon touch the LCD LCDs and adopt 4 wire resistance type touch screen interfaces to drive, and program is chosen the I/O interface module that signal outputs to described ARM.
Signal source of the present invention, wherein said keying panel converts the keyboard trigger impulse to I by the ZLG7920 chip
2The C signal outputs to the I of described ARM
2In the C module.
Signal source of the present invention, wherein said memory comprises CF, SD, USB and IDE.
Signal source of the present invention, wherein said ARM is with data, and part three bus modes of address and instruction output to described signal-processing board with information.
Signal source of the present invention, the signal of wherein said TV form are the digital R/G/B signal of Y/Cb/Cr digital television signal or VESA form.
Signal source of the present invention, wherein said encoder comprise DVI coding chip, HDMI coding chip, VGA coding chip and TV coding chip.
The control that a kind of programme signal of signal source is chosen may further comprise the steps:
1) keying panel outputs to ARM with select programs signal or color ribbon touch LCD LCDs output select programs signal data to ARM or remote computer output select programs signal data;
2) ARM judges whether it is the select programs signal instruction that remote computer transmits according to the instruction transmitted, is execution in step 7 then);
3) ARM receives color ribbon and touches the select programs signal instruction that LCD LCDs and keying panel transmit;
4) ARM reading of data and signal data is delivered to signal-processing board from memory;
5) signal-processing board signal data that ARM the is transmitted digital data transmission that converts TV form or VGA form to is given each encoder;
6) output to TV to be measured or display behind the encoding digital signals of encoder with TV form or VGA form;
7) ARM interrupts the control that color ribbon touches LCD LCDs and keying panel, the select programs instruction that the receiving remote computer transmits, and execution in step 4).
Because signal source of the present invention and controlling party normal plane thereof adopt the mode of the operating system combination of ARM and LINUX to realize control, manufacturing cost reduces; The LCD LCDs that has adopted color ribbon to touch, can be intuitively, conveniently select programs and operational control unit, remote computer this long-range demonstration and control appliance have been added, when remote computer carries out Long-distance Control, stop the control that color ribbon touches LCD LCDs and keying panel, the feature description that adds signal figure and this figure of programm name correspondence is conveniently found out the result intuitively; Select for program, to output amplitude, OK/and field structure, pixel clock and sound are selected and joining day axial vector control, and the output non-standard signal makes measuring range wider; Adopted reliable semiconductor device, for example CF card, USB flash disk etc. are applicable to all-environment suitability for industrialized production test.
Description of drawings
Fig. 1 is the system block diagram of signal source of the present invention and control method thereof;
Fig. 2 is the control flow chart that the programme signal of signal source of the present invention and control method thereof is chosen;
Fig. 3 is the hardware catenation principle figure of signal source of the present invention and control method thereof.
Embodiment
Be elaborated below in conjunction with the execution mode of accompanying drawing to signal source of the present invention and control method thereof.
Referring to Fig. 1, a kind of signal source comprises that color ribbon touches LCD LCDs 1, keying panel 2, ARM 3, signal-processing board 4, memory 5, encoder 6 and remote computer 7;
Color ribbon touches LCD LCDs 1 and is used to control program and chooses, and output select programs signal also shows the signal figure and the explanation of figure characteristic of correspondence of the program correspondence that ARM 3 calls;
Keying panel 2 is used for carrying out program according to corresponding prompt to be chosen, output select programs signal;
Remote computer 7 is used to control choosing of program, transmission select programs signal; And show the signal figure and the explanation of figure characteristic of correspondence of the program correspondence that ARM 3 calls
ARM 3 is a core processor, be used to receive the select programs signal, judge whether it is the select programs signal that remote computer transmits, be then to choose by remote computer control program, stop the control that keying panel 2 and color ribbon touch the LCD LCDs, and read information in the memory, message transmission is gone out;
Memory 5 is used for programs stored graph of a correspondence data file, signal figure and the explanation of figure characteristic of correspondence;
Signal-processing board 4 is used to handle the corresponding information that ARM 3 transmits, and data transaction is become the digital signal of TV form or VGA form, with the digital signal output of TV form or VGA form
Encoder 6 is used to connect TV to be measured or display, the TV form of received signal disposable plates 4 outputs or the digital signal of VGA form, and the back output of encoding.
Referring to Fig. 3, the driving that color ribbon touches LCD LCDs 1a is 4 wire resistance type touch screen interfaces, by connecting the driving interface that is provided with among the ARMS3C2440 chip 3a, the select programs signal is directly inputted to the I/O mouth modular circuit of ARMS3C2440 chip 3a; Keyboard 2a circuit mainly is ZLG7920 chip and peripheral circuit thereof, and connects ARMS3C2440 chip 3a, and the trigger impulse of keyboard 3a is converted to I
2The C signal is input to the I of ARMS3C2440 chip 3a
2The C modular circuit; ARM 3 is according to the select programs signal that transmits, and at first reading of data is passed to signal processing EP2C8F256C6 chip 4a in the memory of 5a such as CF or SD or USB or IDE; Wherein adopt LINUX operating system to call data among the ARMS3C2440 chip 3a, and with data, the mode of address and this local three buses of instruction is passed to signal processing EP2C8F256C6 chip 4a.Signal processing EP2C8F256C6 chip 4a becomes the Y/Cb/Cr digital television signal of TV form or the digital R/G/B signal of VESA form with the conversion of signals of three bus modes, signal processing EP2C8F256C6 chip 4a is connected to fan-out ICS8304 chip 8a, fan-out ICS8304 chip 8a is used for expanding data and control signal path, the row that signal processing EP2C8F256C6 chip 4a is transmitted, field signal HS, VS, data useful signal DE, clock signal, and R, G, the B data-signal, behind the extended route, output to DVI coding chip SiI164 6a respectively, HDMI coding chip SiI9134 6b, VGA coding chip THS8200 6c, the corresponding pin of TV coding chip ADV7322 6d.The control signal I that ARMS3C3440 chip 3a transmits
2S, directly output to audio encoding chip CS4344 6e, HDMI coding chip SiI9134 6b, VGA coding chip THS8200 6c, the corresponding pin of TV coding chip ADV7322 6d, the camera pulse signal TRIGER that signal processing EP2C8F256C6 chip 4a transmits connects the corresponding pin of 74AHC2G126 power amplification output 6f.
Signal source of the prior art only produces standard signal, among the present invention standard signal and non-standard signal are produced through signal processing EP2C8F256C6 chip 4a simultaneously, promptly non-standard signal comprise output amplitude, OK/random variation of field structure, pixel clock.Include a frame memory in the signal-processing board 4, an images can be existed in the frame memory, read data in the memory according to clock during following blit picture signals, load uply simultaneously, field sync signal and DE signal are the data useful signals.Standard signal establishing criteria regulation adds a row DE signal output of standard with certain clock; And non-standard signal can change the clock frequency reading of data according to instruction, and regeneration row field sync signal also can change different frequencies according to order.The amplitude adjustment then is to amplify the decay output signal according to instruction.
The corresponding pin of ARMS3C2440 chip 3a also connects remote computer 7a by the mode of RS232 or network interface, when using remote computer 7a control, it is invalid that keyboard 2a and color ribbon touch LCD LCDs 1a, reliability and uniqueness when reaching remote operation.The method of its realization is to add interruptive command to get final product in the ARM programming.
More than all chip and equipment all can adopt chip that is equal to identical function and equipment to replace to use.
Referring to Fig. 2, choosing of programme signal of control may further comprise the steps:
Step 201, keying panel outputs to ARM with select programs signal or color ribbon touch LCD LCDs output select programs signal data to ARM or remote computer output select programs signal data;
Step 202, ARM judges whether it is the select programs signal instruction that remote computer transmits according to the instruction transmitted, is execution in step 207 then;
Step 203, the select programs signal instruction that ARM reception color ribbon touch LCD LCDs and keying panel transmit;
Step 204, ARM reading of data and signal data is delivered to signal-processing board from memory;
Step 205, the signal data that signal-processing board transmits ARM convert the digital data transmission of TV form or VGA form to and give each encoder;
Step 206 outputs to TV to be measured or display behind the encoding digital signals of encoder with TV form or VGA form;
Step 207, ARM interrupts the control that color ribbon touches LCD LCDs and keying panel, the select programs instruction that the receiving remote computer transmits, and execution in step 204.
Because signal source of the present invention and control method thereof adopt the mode of the operating system combination of ARM and LINUX to realize control, manufacturing cost reduces; The LCD LCDs that has adopted color ribbon to touch, can be intuitively, conveniently select programs and operational control unit, remote computer this long-range demonstration and control appliance have been added, when remote computer carries out Long-distance Control, stop the control that color ribbon touches LCD LCDs and keying panel, the feature description that adds signal figure and this figure of programm name correspondence is conveniently found out the result intuitively; Select for program, to output amplitude, OK/and field structure, pixel clock and sound are selected and joining day axial vector control, and the output non-standard signal makes measuring range wider; Adopted reliable semiconductor device, for example CF card, USB flash disk etc. are applicable to all-environment suitability for industrialized production test.
Above embodiment is described preferred implementation of the present invention; be not that scope of the present invention is limited; design under the prerequisite of spirit not breaking away from the present invention; various distortion and improvement that the common engineers and technicians in this area make technical scheme of the present invention all should fall in the definite protection range of claims of the present invention.
Claims (10)
1. a signal source comprises keying panel (2), memory (5), signal-processing board (4), encoder (6), remote computer (7);
Described keying panel (2) is used for carrying out program according to corresponding prompt to be chosen, output select programs signal;
Described memory (5) is used for programs stored graph of a correspondence data file, signal figure and the explanation of figure characteristic of correspondence;
Described remote computer (7) is used to control choosing of program, transmission select programs signal, and the signal figure of display program correspondence and the explanation of figure characteristic of correspondence;
Described signal-processing board (4) is used to handle the corresponding information of reception, and data transaction is become the digital signal of TV form or VGA form, with the digital signal output of TV form or VGA form;
Described encoder (6) is used to connect TV to be measured or display, receives the TV form of described signal-processing board (4) output or the digital signal of VGA form, and the back output of encoding;
It is characterized in that, comprise that also color ribbon touches LCD LCDs (1) and ARM (3);
Described color ribbon touches LCD LCDs (1) and is used for when non-described remote computer (7) is controlled, the control program is chosen, export the select programs signal, and show the signal figure and the explanation of figure characteristic of correspondence of the program correspondence that described ARM (3) calls;
Described ARM (3) is used to receive the select programs signal, judge whether it is the select programs signal that described remote computer (7) transmits, be then to choose by described remote computer (7) control program, stop the control of keying panel (2), and read information in the memory, with message transmission to signal-processing board (4).
2. signal source according to claim 1 is characterized in that, described signal-processing board (4) outputting standard signal and non-standard signal.
3. signal source according to claim 2 is characterized in that, described non-standard signal comprise output amplitude, OK/field structure and pixel clock.
4. signal source according to claim 3 is characterized in that, described color ribbon touches LCD LCDs (1) and adopts 4 wire resistance type touch screen interfaces to drive, and program is chosen the I/O interface module that signal outputs to described ARM (3).
5. signal source according to claim 4 is characterized in that, described keying panel (2) converts the keyboard trigger impulse to I by the ZLG7920 chip
2The C signal outputs to the I of described ARM (3)
2In the C module.
6. signal source according to claim 5 is characterized in that, described memory (5) comprises CF, SD, USB and IDE.
7. signal source according to claim 6 is characterized in that, described ARM (3) is with data, and part three bus modes of address and instruction output to described signal-processing board (4) with information.
8. signal source according to claim 7 is characterized in that, the signal of described TV form is the digital R/G/B signal of Y/Cb/Cr digital television signal or VESA form.
9. signal source according to claim 8 is characterized in that, described encoder (6) comprises DVI coding chip, HDMI coding chip, VGA coding chip and TV coding chip.
10. a control method of choosing according to the programme signal of any described signal source of claim 1-9 is characterized in that, may further comprise the steps:
1) keying panel outputs to ARM with select programs signal or color ribbon touch LCD LCDs output select programs signal data to ARM or remote computer output select programs signal data;
2) ARM judges whether it is the select programs signal instruction that remote computer transmits according to the instruction transmitted, is execution in step 7 then);
3) ARM receives color ribbon and touches the select programs signal instruction that LCD LCDs and keying panel transmit;
4) ARM reading of data and signal data is delivered to signal-processing board from memory;
5) signal-processing board signal data that ARM the is transmitted digital data transmission that converts TV form or VGA form to is given each encoder;
6) output to TV to be measured or display behind the encoding digital signals of encoder with TV form or VGA form;
7) ARM interrupts the control that color ribbon touches LCD LCDs and keying panel, the select programs signal instruction that the receiving remote computer transmits, and execution in step 4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100831606A CN101547377B (en) | 2009-05-05 | 2009-05-05 | Signal source and control method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100831606A CN101547377B (en) | 2009-05-05 | 2009-05-05 | Signal source and control method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101547377A CN101547377A (en) | 2009-09-30 |
| CN101547377B true CN101547377B (en) | 2011-07-06 |
Family
ID=41194198
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009100831606A Expired - Fee Related CN101547377B (en) | 2009-05-05 | 2009-05-05 | Signal source and control method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101547377B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103124365A (en) * | 2011-11-18 | 2013-05-29 | 北京牡丹视源电子有限责任公司 | Energy efficiency testing signal generating device of flat panel television |
| CN102447946A (en) * | 2011-12-22 | 2012-05-09 | 广州中大电讯科技有限公司 | Digital television test system based on DSP (Digital Signal Processor) |
| CN103207703B (en) * | 2013-04-03 | 2016-08-03 | 苏州佳世达光电有限公司 | Touching signals sends system, display device, multimedia system and correlation technique |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1721864A (en) * | 2004-07-15 | 2006-01-18 | 鸿富锦精密工业（深圳）有限公司 | Display equipment test system and method |
| CN1949888A (en) * | 2006-05-22 | 2007-04-18 | 深圳创维－Rgb电子工业有限公司 | System and method for producing high resolution television test signal |
| CN201114508Y (en) * | 2007-09-29 | 2008-09-10 | 上海国宽信息科技有限公司 | Digital TV high-definition signal code stream instrument |
-
2009
- 2009-05-05 CN CN2009100831606A patent/CN101547377B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1721864A (en) * | 2004-07-15 | 2006-01-18 | 鸿富锦精密工业（深圳）有限公司 | Display equipment test system and method |
| CN1949888A (en) * | 2006-05-22 | 2007-04-18 | 深圳创维－Rgb电子工业有限公司 | System and method for producing high resolution television test signal |
| CN201114508Y (en) * | 2007-09-29 | 2008-09-10 | 上海国宽信息科技有限公司 | Digital TV high-definition signal code stream instrument |
Non-Patent Citations (2)
| Title |
|---|
| JP特开2006-332948A1 2006.12.07 |
| JP特开2007-124275A 2007.05.17 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101547377A (en) | 2009-09-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110231924B (en) | Video conference system and transmitting terminal device thereof | |
| US8896705B2 (en) | Measuring device and associated method for measuring response speed of display panel | |
| CN101166251A (en) | Display apparatus, display system, and control method thereof | |
| CN102256158A (en) | Automatic television circuit board function testing method and system | |
| CN102789073A (en) | Testing method for MIPI liquid crystal screen | |
| CN101006409A (en) | Display apparatus and display system using the same | |
| CN101547377B (en) | Signal source and control method thereof | |
| CN103327281A (en) | Format conversion method and format conversion circuit | |
| WO2005020237A1 (en) | Dvd player that sets optimal display environment and operating method thereof | |
| KR20140017394A (en) | Image processing apparatus and inspecting method thereof | |
| CN102123248B (en) | Splicing wall for monitors and splicing unit thereof | |
| CN1859548A (en) | Image processing apparatus, image storing system comprising the same and control method thereof | |
| WO2007020399A2 (en) | A display device | |
| CN101414453B (en) | Bidirectional data transmission system and method, display device and microcomputer | |
| CN103312718A (en) | Device control method and device and multimedia equipment | |
| CN102890592A (en) | Control method and system of multimedia display | |
| CN100369076C (en) | Control chip module and its control method | |
| CN219370342U (en) | Intelligent interaction panel | |
| CN111429832A (en) | Synchronous control system for display controller and L ED display screen | |
| JP2009093696A (en) | Test system for information reproducing system | |
| US20070153011A1 (en) | Video signal circuit of notebook computer | |
| JP2002063017A (en) | Display system and display device | |
| CN213751890U (en) | LED control system with video processing function | |
| CN211831013U (en) | Wireless screen projection display equipment | |
| CN113312227B (en) | OTG function detection method, system, device and equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110706 Termination date: 20150505 |
|
| EXPY | Termination of patent right or utility model |